package com.xiaoqi.springcloud.controller;

import com.netflix.discovery.DiscoveryClient;
import com.xiaoqi.springcloud.LB.LoadBalancer;
import com.xiaoqi.springcloud.entities.CommonResult;
import com.xiaoqi.springcloud.entities.Payment;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

/**
 * @Author Rookie Coder
 * @Description
 * @Date
 **/
@RestController
@Slf4j
public class OrderController {

    public static final String PAYMENT_URL = "http://cloud-payment-service";

    @Autowired
    private  RestTemplate restTemplate;
    @Resource
    private LoadBalancer loadBalancer;
    @Resource
    private DiscoveryClient discoveryClient;

    @GetMapping("/consumer/payment/create")
    public CommonResult<Payment> creat(Payment payment){
        return restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment, CommonResult.class);
    }

    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult getPaymentById(@PathVariable("id") Long id){
        return   restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,CommonResult.class);
    }

    @GetMapping(value = "/consumer/payment/lb")
    public String getPaymentLB(){

        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PYAMENT-SERVUCE");
        if (instances == null || instances.size() <= 0){
            return null;
        }
        ServiceInstance serviceInstance = loadBalancer.instance(instances);
        URI uri = serviceInstance.getUri();
        return restTemplate.getForObject(uri+"/payment/lb",String.class);
    }

}
